StringMatcherList.h

/*
 
MIT License
 
Copyright (c) 2017 FMI Open Development / Markus Peura, first.last@fmi.fi
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 
 */
/*
Part of Rack development has been done in the BALTRAD projects part-financed
by the European Union (European Regional Development Fund and European
Neighbourhood Partnership Instrument, Baltic Sea Region Programme 2007-2013)
 */
 
#ifndef DRAIN_STRING_MATCHER_LIST
#define DRAIN_STRING_MATCHER_LIST
 
#include <list>
 
// #include <drain/Log.h>
#include <drain/Sprinter.h>
#include <drain/StringTools.h>
#include "StringMatcher.h"
 
 
namespace drain {
 
 
 
template <class T=std::string>
class StringMatcherList : public std::list<T> { // string temporary ?
 
public:
 
    typedef T matcher_t;
 
    typedef std::list<T> list_t;
 
    template <typename ... TT>
    inline
    StringMatcherList(const TT &... args){
        // reset not needed
        addKey(args...);
    }
 
 
    inline
    StringMatcherList(const StringMatcherList<T> &l) : list_t(l) {
    };
 
    inline
    StringMatcherList(std::initializer_list<matcher_t> l){
        setKeys(l);
    };
 
 
    virtual inline
    ~StringMatcherList(){};
 
 
    operator bool() const {
        return !this->empty();
    }
 
 
    inline
    StringMatcherList operator=(const StringMatcherList<matcher_t> &l){
        setKeys(l);
        return *this;
    }
 
    StringMatcherList operator=(const std::initializer_list<matcher_t> &l){
        setKeys(l);
        return *this;
    }
 
    void setKeys(const StringMatcherList<matcher_t> & l){
        this->clear();
        for (const matcher_t & key: l) {
            this->push_back(key);
        }
    }
 
    template <class T2>
    void setKeys(const std::initializer_list<T2> & l){
        this->clear();
        for (const T2 & entry: l) {
            adaptKey(entry);
        }
    }
 
    template <class T2>
    void setKeys(const std::list<T2> & l){
        this->clear();
        for (const T2 & key: l) {
            adaptKey(key);
        }
    }
 
 
    template <typename ...TT>
    void setKeys(const std::string & arg, const TT & ... args){
        //clear();
        insertKeys(arg); // split and adapt
        addKey(args...);
    }
 
 
    template <typename ...TT>
    void addKey(const matcher_t & arg, const TT & ... args){
        adaptKey(arg);
        addKey(args...);
    }
 
 
 
    bool test(const std::string & key, bool defaultResult = true) const;
 
    const matcher_t & retrieve(const std::string & key) const;
 
 
    inline
    bool isSet() const {
        return !this->empty();
        //return (regExp.isSet() || !quantities.empty()) ;
    }
 
    inline
    const list_t & getList() const {
        return *this;
    }
 
    inline
    void toStream(std::ostream & ostr) const {
        drain::Sprinter::sequenceToStream(ostr, *this, drain::Sprinter::cmdLineLayout);
    }
 
protected:
 
 
    void insertKeys(const std::string & args); // , const std::string & separators = ","
 
    inline
    void addKey(){};
 
    //void adaptKey(const std::string & s);
    void adaptKey(const matcher_t & s);
 
    // mutable // called by updateBean()?
    // drain::RegExp regExp;
 
    // mutable
    // list_t quantities;
 
 
};
 
template <class T>
void StringMatcherList<T>::insertKeys(const std::string & args){ //, const std::string & separators){
    // drain::Logger mout(__FILE__, __FUNCTION__);
    this->clear();
    std::vector<std::string> argv;
    //const char s =
    drain::StringTools::split(args, argv, ",:"); //separators);
    for (const std::string & arg: argv){
        // mout.attention("adapting: ", arg, " split by '", separators, "'");
        adaptKey(arg);
    }
 
}
 
 
template <class T>
//void StringMatcherList<T>::adaptKey(const std::string & s){
void StringMatcherList<T>::adaptKey(const matcher_t & matcher){
 
    if (matcher.empty()){
        return;
    }
    else {
 
        //matcher_t matcher(s);
        for (const matcher_t & m: *this){
            if (m == matcher){  // two matchers are equal if they accept and reject equally.
                // exists already, dont append...
                return;
            }
        }
 
        this->push_back(matcher);
        // Save copying?
        /*
        push_back(KeyMatcher());
        back().set(s);
        */
    }
 
}
 
 
 
template <class T>
bool StringMatcherList<T>::test(const std::string & key, bool defaultResult) const {
 
    if (this->empty()){
        return defaultResult; // Alternative: could need empty k - but on the other hand, why add it in a list, as it accepts anything.
    }
    else {
        for (const auto & k: *this){
            if (k == key){  //
                return true;
            }
        }
    }
 
    return false;
 
}
 
template <class T>
const typename StringMatcherList<T>::matcher_t & StringMatcherList<T>::retrieve(const std::string & key) const {
 
    static
    const matcher_t empty;
 
    if (this->empty()){
        return empty; // Alternative: could need empty k - but on the other hand, why add it in a list, as it accepts anything.
    }
    else {
        for (const auto & matcher: *this){
            if (matcher == key){  //
                return matcher;
            }
        }
    }
 
    return empty;
 
}
 
 
template <class T>
inline
std::ostream & operator<<(std::ostream & ostr, const StringMatcherList<T> & selector){
    selector.toStream(ostr);
    return ostr;
}
 
typedef StringMatcherList<StringMatcher> KeySelector;
 
DRAIN_TYPENAME(KeySelector);
 
} // drain::
 
#endif // QUANTITY_MATCHER